Austin came out for the second half in street clothes after it was announced he was questionable to return.
Austin appeared to be injured on a 37-yard catch down the sideline during the second quarter. He pulled up after the play and quickly went to the sideline. He wasn't putting weight on his right leg and immediately received an ice pack on the hamstring.
"Randomly on that one play, my other hammy just grabbed up, out of nowhere," Austin said. "It's hard to describe how it feels, but it really hurts."
Austin caught two passes for 53 yards before leaving the game.
The Associated Press contributed to this report